Graphic: Starting over

Developers have proposals to add more than 8.1 million square feet to the downtown office market, including several smaller buildings on the edge of the West Loop. Not all of the projects will move forward because of the small pool of potential tenants, rising construction costs and the sluggish local economy. The recession brought downtown office construction to a standstill, after a long run of 17 office buildings totaling 14.5 million square feet that came online between 1997 and 2009.

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Source: Cook County property records, CoStar Group Inc., Appraisal Research Counselors, Crain's reporting, CBRE Inc., Studley Inc. Photos: CoStarCorrection: A map on downtown office development, published on Feb. 18, should have included 71 S. Wacker Drive, a 1.5-million-square-foot building constructed in 2005. Including that tower, 18 office buildings totaling 16 million square feet were constructed between 1997 and 2009.